Comparative Analysis of Antibody Titers against the Spike Protein of SARS-CoV-2 Variants in Infected Patient Cohorts and Diverse Vaccination Regimes oleh Alexandru Odainic, Jasper Spitzer, Jennifer Barbara Szlapa, Simon Schade, Tim Jonas Krämer, Jakob Neuberger, Christian Bode, Folkert Steinhagen, Ricarda Maria Schmithausen, Gero Wilbring, Esther Sib, Nico Tom Mutters, Frederik Rabenschlag, Lisa Kettel, Maike Woznitza, Kathrin van Bremen, Tina Peers, Gez Medinger, Anushka Kudaliyanage, Maike Kreutzenbeck, Ulrike Strube, Joseph M. Johnson, Dawn Mattoon, Andrew J. Ball, Stefan Scory, Richard McGuire, Christian Putensen, Zeinab Abdullah, Catharina Latz, Susanne Viktoria Schmidt